class A(object):
    def method_1(self):
        print "A.1"
    def method_2(self):
        print "A.2"

class B(A):
    def method_1(self):
        print "B.1"
        super(B,self).method_1()
        self.method_2()



if __name__ == '__main__':
    b = B()
    b.method_1()
    b.method_2()